Marine Wildlife

Marine Wildlife: Grey Seal Pupping Season Disturbance

Grey seal pupping colonies on UK beaches are highly vulnerable to human disturbance during the November to January pupping season.

Key Facts

The UK holds approximately 40% of the world's grey seal population
Grey seal pups are born on beaches from November to January, starting white-coated and immobile
Disturbance causing mothers to flee can result in permanent abandonment of pups
Drones flying over colonies cause behavioural disturbance detectable from hundreds of metres
Pups left alone for hours are normal - they are not abandoned and do not need rescue

Welfare Considerations

Human disturbance of grey seal pupping colonies causes serious welfare harm through maternal abandonment and pup starvation. The pup white coat phase lasts three weeks during which the pup is completely dependent on the mother for milk. Even brief disturbances that separate mother and pup during this period can be fatal. Seasonal exclusion zones and public education are the most effective welfare interventions.

What You Can Do

Stay at least 100 metres from grey seal pups and mothers on beaches
Never attempt to approach or touch grey seal pups
Keep dogs on leads near seal colonies at all times
Do not fly drones over or near seal pupping beaches
Contact BDMLR if you see an injured seal - do not attempt to help yourself